Mountain resort image
– Lat/Long: 48.71° N 121.99° W

South Twin Sister
Weather Forecast, United States

Issued: 9 am Sun 22 Feb Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Heavy rain (total 30mm), mostly on Mon morning. Becoming colder with a light covering of snow ,mostly falling on Tue night. Freeze-thaw conditions (max 5°C on Sun afternoon, min -1°C on Mon night). Wind will be generally light.

Days 4–6 Weather Summary

A dusting of snow giving way to moderate rain (total 10mm) heaviest on Wed morning. Freeze-thaw conditions (max 4°C on Thu morning, min 0°C on Fri night). Wind will be generally light.

Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
mod rain
light rain
mod rain
heavy rain
rain showers
part cloud
light rain
rain showers
mod snow
light snow
light rain
light rain
light rain
light rain
light rain
rain showers
rain showers
light rain
mod. rain
light rain
mod. rain
heavy rain
rain shwrs
some clouds
light rain
rain shwrs
mod. snow
light snow
light rain
light rain
light rain
light rain
light rain
rain shwrs
rain shwrs
light rain
 km/h
10
ESE
10
SE
15
SSE
5
WSW
0
WSW
5
NE
0
SSW
5
W
10
WSW
10
SW
5
SW
10
SSW
5
SW
5
SSW
5
SSW
5
SSW
5
SW
10
WSW
6
1
5
1.7
9
11
1.2
1.3
0.9
2
3
2
0.2
0.2
1.1
0.4
0.4
0.1
max °C
4
5
4
3
3
0
3
2
2
2
3
3
4
4
3
4
4
3
min °C
4
4
4
2
1
-1
3
1
0
2
2
2
3
3
3
3
2
0
1
1
2
0
1
-3
3
0
-2
0
1
0
1
1
2
1
0
-2
1500
1300
1300
800
1000
350
950
850
650
800
950
950
1050
1150
1000
1000
1050
750
Cloud base (m)
900
600
600
600
600
600
1950
650
550
600
600
600
600
600
600
600
600
550
Sea lvl1000m2000m3000m4000m5000m
-5-5-5-9-8-7-6-8-10-8-7-6-5-5-6-6-6-8-1-1-2-4-4-4-4-5-5-4-3-3-3-2-3-3-3-545432-1321233443432
Sunrise
7:01
7:00
6:58
6:56
6:54
6:52
Sunset
5:39
5:42
5:43
5:45
5:46
5:47

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Heavy rain (total 30mm), mostly on Mon morning. Becoming colder with a light covering of snow ,mostly falling on Tue night. Freeze-thaw conditions (max 5°C on Sun afternoon, min -1°C on Mon night). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

A dusting of snow giving way to moderate rain (total 10mm) heaviest on Wed morning. Freeze-thaw conditions (max 4°C on Thu morning, min 0°C on Fri night). Wind will be generally light.

This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.

Live conditions reported by 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
22 km WSW
94m alt.
35 minutes ago
8° C
Dry
10
Light winds from the E
(10 kph at 81).
39
25 km WNW
102m alt.
37 minutes ago
8° C
Dry
11
Light winds from the SE
(11 kph at 139).
24
25 km WSW
198m alt.
36 minutes ago
7° C
Dry
2
Calm
(2 kph at 25).
6
26 km NW
125m alt.
2 hours ago
7° C
Dry
Wind obs. (8 kph from 149 degs) was rejected.
27 km WSW
99m alt.
32 minutes ago
7° C
Dry
29
Fresh winds from the SSE
(29 kph at 150).
47
28 km NW
152m alt.
42 minutes ago
7° C
Dry
Wind obs. (6 kph from 133 degs) was rejected.
30 km WSW
130m alt.
1 hour ago
7° C
Dry
6
Light winds from the SSE
(6 kph at 159).
19
35 km WNW
19m alt.
2 hours ago
9° C
Dry
3
Calm
(3 kph at 165).
13
35 km WSW
100m alt.
22 minutes ago
10° C
Dry
19
Light winds from the SSE
(19 kph at 155).
34
SHIP7747
39 km W
15m alt.
3 hours ago
32
Fresh winds from the SSE
(32 kph at 150).
- km

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.